/**
 *
 *    geo-platform
 *    Rich webgis framework
 *    http://geo-platform.org
 *   ====================================================================
 *
 *   Copyright (C) 2008-2014 geoSDI Group (CNR IMAA - Potenza - ITALY).
 *
 *   This program is free software: you can redistribute it and/or modify it
 *   under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version. This program is distributed in the
 *   hope that it will be useful, but WITHOUT ANY WARRANTY; without
 *   even the implied warranty of MERCHANTABILITY or FITNESS FOR
 *   A PARTICULAR PURPOSE. See the GNU General Public License
 *   for more details. You should have received a copy of the GNU General
 *   Public License along with this program. If not, see http://www.gnu.org/licenses/
 *
 *   ====================================================================
 *
 *   Linking this library statically or dynamically with other modules is
 *   making a combined work based on this library. Thus, the terms and
 *   conditions of the GNU General Public License cover the whole combination.
 *
 *   As a special exception, the copyright holders of this library give you permission
 *   to link this library with independent modules to produce an executable, regardless
 *   of the license terms of these independent modules, and to copy and distribute
 *   the resulting executable under terms of your choice, provided that you also meet,
 *   for each linked independent module, the terms and conditions of the license of
 *   that module. An independent module is a module which is not derived from or
 *   based on this library. If you modify this library, you may extend this exception
 *   to your version of the library, but you are not obligated to do so. If you do not
 *   wish to do so, delete this exception statement from your version.
 */
package org.geosdi.geoplatform.gui.configuration.resources;

import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.LinkElement;
import com.google.gwt.dom.client.StyleInjector;
import com.google.gwt.resources.client.TextResource;

/**
 *
 * @author Giuseppe La Scaleia - CNR IMAA geoSDI Group
 * @email giuseppe.lascaleia@geosdi.org
 */
public class GeoPlatformStyleInjector extends GPAbstractInjector {

    private GeoPlatformStyleInjector() {
    }

    public static void injectCss(String cssName) {
        assert cssName != null : "The Css must not be null.";
        StyleInjector.inject(cssName);
    }

    public static void injectCssFile(String cssFileName) {
        assert cssFileName != null : "Css File Name must not be null";

        LinkElement linkElem = Document.get().createLinkElement();
        linkElem.setRel("stylesheet");
        linkElem.setType("text/css");
        linkElem.setHref(GWT.getModuleName() + cssFileName);
        getHead().appendChild(linkElem);
    }

    public static void injectCss(String... css) {
        assert css != null : "The Css Parameter must not be null.";

        for (String cssName : css) {
            injectCss(cssName);
        }
    }

    public static void injectCssFile(String... cssFileNames) {
        assert cssFileNames != null : "Parameter Css File Names must not be null.";

        for (String cssFileName : cssFileNames) {
            injectCssFile(cssFileName);
        }
    }

    public static void injectCss(TextResource resource) {
        assert resource != null : "Parameter Resource must not be null";

        injectCss(resource.getText());
    }

    public static void injectCss(TextResource... resources) {
        assert resources != null : "Parameter Resources must not be null";

        for (TextResource textResource : resources) {
            injectCss(textResource.getText());
        }
    }

}
